Factual error: The boy plays a game of chess at a tournament against some other person. The camera only shows a few pictures of the board, however, when the boy says "goodbye" and the game ends, due to an allegedly checkmate, the following is shown: the opponents king is on f7, with his own figures all around but e8 and h7-9 being free. On h5 is the boy's rook which attacks the h7, h8 and h9 fields. Now the boy moves his bishop to h6, thus attacks f7 (where the king is) and e8 (the only free spot but h6-8). Now of course h6, f7 and e8 are not available to the king anymore, but as the bishop blocks the rooks attack on the h-line, the king now has the fields h7 and h8 to go to. Thus it's by no means "checkmate."

House: As long as you're trying to be good, you can do whatever you want.Dr. Wilson: And as long as you're not trying, you can say whatever you want.House: So between us, we can do whatever we want. We can rule the world!

Episode 6.12, Moving The Chains: Marcus tells House that he and Eric were arrested for stealing a car, he was 16 and Eric was 14. He also says that his brother never did anything criminal after that. In season 1, we were told that Eric was 16 when he was arrested for stealing a car.

Hugh Laurie auditioned for the role as Dr. Gregory House in his hotel room bathroom in Namibia. He was rehearsing his role for the film The Flight of the Phoenix and claimed that the bathroom was the only place with enough light. He also apologized for his appearance on tape before the audition as he'd just come back from filming. The fact that House has a somewhat scruffy and unkempt look, particularly his constant five o'clock shadow, has been attributed by creator David Shore to Laurie's appearance in this audition tape.